Impact of probe array-test antenna interaction on the accuracy of near-field techniques in spherical coordinates

The use of probe arrays has demonstrated its efficiency to provide accurate and rapid near-field measurements. The interaction between the probe array and the antenna under test must be minimized in order to avoid excessive uncompensable errors. The effect of this interaction has been investigated by means of numerical modelling in the case of a spherical near-field facility using a semi-circular probe array.